prometheus/model/textparse/openmetrics2lex.l.go

// Code generated by golex. DO NOT EDIT.

// Copyright 2025 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package textparse

import (
	"fmt"
)

// Lex is called by the parser generated by "go tool yacc" to obtain each
// token. The method is opened before the matching rules block and closed at
// the end of the file.
func (l *openMetrics2Lexer) Lex() token {
	if l.i >= len(l.b) {
		return tEOF
	}
	c := l.b[l.i]
	l.start = l.i

yystate0:

	switch yyt := l.state; yyt {
	default:
		panic(fmt.Errorf(`invalid start condition %d`, yyt))
	case 0: // start condition: INITIAL
		goto yystart1
	case 1: // start condition: sComment
		goto yystart6
	case 2: // start condition: sMeta1
		goto yystart26
	case 3: // start condition: sMeta2
		goto yystart31
	case 4: // start condition: sLabels
		goto yystart34
	case 5: // start condition: sLValue
		goto yystart42
	case 6: // start condition: sValue
		goto yystart46
	case 7: // start condition: sTimestamp
		goto yystart51
	case 8: // start condition: sExemplar
		goto yystart62
	case 9: // start condition: sEValue
		goto yystart70
	case 10: // start condition: sETimestamp
		goto yystart76
	case 11: // start condition: sComplexValue
		goto yystart80
	}

yystate1:
	c = l.next()
yystart1:
	switch {
	default:
		goto yyabort
	case c == '#':
		goto yystate2
	case c == ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
		goto yystate4
	case c == '{':
		goto yystate5
	}

yystate2:
	c = l.next()
	switch {
	default:
		goto yyabort
	case c == ' ':
		goto yystate3
	}

yystate3:
	c = l.next()
	goto yyrule1

yystate4:
	c = l.next()
	switch {
	default:
		goto yyrule9
	case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
		goto yystate4
	}

yystate5:
	c = l.next()
	goto yyrule11

yystate6:
	c = l.next()
yystart6:
	switch {
	default:
		goto yyabort
	case c == 'E':
		goto yystate7
	case c == 'H':
		goto yystate11
	case c == 'T':
		goto yystate16
	case c == 'U':
		goto yystate21
	}

yystate7:
	c = l.next()
	switch {
	default:
		goto yyabort
	case c == 'O':
		goto yystate8
	}

yystate8:
	c = l.next()
	switch {
	default:
		goto yyabort
	case c == 'F':
		goto yystate9
	}

yystate9:
	c = l.next()
	switch {
	default:
		goto yyrule5
	case c == '\n':
		goto yystate10
	}

yystate10:
	c = l.next()
	goto yyrule5

yystate11:
	c = l.next()
	switch {
	default:
		goto yyabort
	case c == 'E':
		goto yystate12
	}

yystate12:
	c = l.next()
	switch {
	default:
		goto yyabort
	case c == 'L':
		goto yystate13
	}

yystate13:
	c = l.next()
	switch {
	default:
		goto yyabort
	case c == 'P':
		goto yystate14
	}

yystate14:
	c = l.next()
	switch {
	default:
		goto yyabort
	case c == ' ':
		goto yystate15
	}

yystate15:
	c = l.next()
	goto yyrule2

yystate16:
	c = l.next()
	switch {
	default:
		goto yyabort
	case c == 'Y':
		goto yystate17
	}

yystate17:
	c = l.next()
	switch {
	default:
		goto yyabort
	case c == 'P':
		goto yystate18
	}

yystate18:
	c = l.next()
	switch {
	default:
		goto yyabort
	case c == 'E':
		goto yystate19
	}

yystate19:
	c = l.next()
	switch {
	default:
		goto yyabort
	case c == ' ':
		goto yystate20
	}

yystate20:
	c = l.next()
	goto yyrule3

yystate21:
	c = l.next()
	switch {
	default:
		goto yyabort
	case c == 'N':
		goto yystate22
	}

yystate22:
	c = l.next()
	switch {
	default:
		goto yyabort
	case c == 'I':
		goto yystate23
	}

yystate23:
	c = l.next()
	switch {
	default:
		goto yyabort
	case c == 'T':
		goto yystate24
	}

yystate24:
	c = l.next()
	switch {
	default:
		goto yyabort
	case c == ' ':
		goto yystate25
	}

yystate25:
	c = l.next()
	goto yyrule4

yystate26:
	c = l.next()
yystart26:
	switch {
	default:
		goto yyabort
	case c == '"':
		goto yystate27
	case c == ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
		goto yystate30
	}

yystate27:
	c = l.next()
	switch {
	default:
		goto yyabort
	case c == '"':
		goto yystate28
	case c == '\\':
		goto yystate29
	case c >= '\x01' && c <= '!' || c >= '#' && c <= '[' || c >= ']' && c <= 'ÿ':
		goto yystate27
	}

yystate28:
	c = l.next()
	goto yyrule6

yystate29:
	c = l.next()
	switch {
	default:
		goto yyabort
	case c >= '\x01' && c <= '\t' || c >= '\v' && c <= 'ÿ':
		goto yystate27
	}

yystate30:
	c = l.next()
	switch {
	default:
		goto yyrule7
	case c >= '0' && c <= ':' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
		goto yystate30
	}

yystate31:
	c = l.next()
yystart31:
	switch {
	default:
		goto yyabort
	case c == ' ':
		goto yystate32
	}

yystate32:
	c = l.next()
	switch {
	default:
		goto yyabort
	case c == '\n':
		goto yystate33
	case c >= '\x01' && c <= '\t' || c >= '\v' && c <= 'ÿ':
		goto yystate32
	}

yystate33:
	c = l.next()
	goto yyrule8

yystate34:
	c = l.next()
yystart34:
	switch {
	default:
		goto yyabort
	case c == '"':
		goto yystate35
	case c == ',':
		goto yystate38
	case c == '=':
		goto yystate39
	case c == '}':
		goto yystate41
	case c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
		goto yystate40
	}

yystate35:
	c = l.next()
	switch {
	default:
		goto yyabort
	case c == '"':
		goto yystate36
	case c == '\\':
		goto yystate37
	case c >= '\x01' && c <= '!' || c >= '#' && c <= '[' || c >= ']' && c <= 'ÿ':
		goto yystate35
	}

yystate36:
	c = l.next()
	goto yyrule13

yystate37:
	c = l.next()
	switch {
	default:
		goto yyabort
	case c >= '\x01' && c <= '\t' || c >= '\v' && c <= 'ÿ':
		goto yystate35
	}

yystate38:
	c = l.next()
	goto yyrule16

yystate39:
	c = l.next()
	goto yyrule15

yystate40:
	c = l.next()
	switch {
	default:
		goto yyrule12
	case c >= '0' && c <= '9' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
		goto yystate40
	}

yystate41:
	c = l.next()
	goto yyrule14

yystate42:
	c = l.next()
yystart42:
	switch {
	default:
		goto yyabort
	case c == '"':
		goto yystate43
	}

yystate43:
	c = l.next()
	switch {
	default:
		goto yyabort
	case c == '"':
		goto yystate44
	case c == '\\':
		goto yystate45
	case c >= '\x01' && c <= '\t' || c >= '\v' && c <= '!' || c >= '#' && c <= '[' || c >= ']' && c <= 'ÿ':
		goto yystate43
	}

yystate44:
	c = l.next()
	goto yyrule17

yystate45:
	c = l.next()
	switch {
	default:
		goto yyabort
	case c >= '\x01' && c <= '\t' || c >= '\v' && c <= 'ÿ':
		goto yystate43
	}

yystate46:
	c = l.next()
yystart46:
	switch {
	default:
		goto yyabort
	case c == ' ':
		goto yystate47
	case c == '{':
		goto yystate50
	}

yystate47:
	c = l.next()
	switch {
	default:
		goto yyabort
	case c == '{':
		goto yystate49
	case c >= '\x01' && c <= '\t' || c >= '\v' && c <= '\x1f' || c >= '!' && c <= 'z' || c >= '|' && c <= 'ÿ':
		goto yystate48
	}

yystate48:
	c = l.next()
	switch {
	default:
		goto yyrule27
	case c >= '\x01' && c <= '\t' || c >= '\v' && c <= '\x1f' || c >= '!' && c <= 'z' || c >= '|' && c <= 'ÿ':
		goto yystate48
	}

yystate49:
	c = l.next()
	goto yyrule18

yystate50:
	c = l.next()
	goto yyrule10

yystate51:
	c = l.next()
yystart51:
	switch {
	default:
		goto yyabort
	case c == ' ':
		goto yystate53
	case c == '\n':
		goto yystate52
	}

yystate52:
	c = l.next()
	goto yyrule30

yystate53:
	c = l.next()
	switch {
	default:
		goto yyabort
	case c == '#':
		goto yystate55
	case c == 's':
		goto yystate58
	case c >= '\x01' && c <= '\t' || c >= '\v' && c <= '\x1f' || c == '!' || c == '"' || c >= '$' && c <= 'r' || c >= 't' && c <= 'ÿ':
		goto yystate54
	}

yystate54:
	c = l.next()
	switch {
	default:
		goto yyrule29
	case c >= '\x01' && c <= '\t' || c >= '\v' && c <= '\x1f' || c >= '!' && c <= 'ÿ':
		goto yystate54
	}

yystate55:
	c = l.next()
	switch {
	default:
		goto yyrule29
	case c == ' ':
		goto yystate56
	case c >= '\x01' && c <= '\t' || c >= '\v' && c <= '\x1f' || c >= '!' && c <= 'ÿ':
		goto yystate54
	}

yystate56:
	c = l.next()
	switch {
	default:
		goto yyabort
	case c == '{':
		goto yystate57
	}

yystate57:
	c = l.next()
	goto yyrule31

yystate58:
	c = l.next()
	switch {
	default:
		goto yyrule29
	case c == 't':
		goto yystate59
	case c >= '\x01' && c <= '\t' || c >= '\v' && c <= '\x1f' || c >= '!' && c <= 's' || c >= 'u' && c <= 'ÿ':
		goto yystate54
	}

yystate59:
	c = l.next()
	switch {
	default:
		goto yyrule29
	case c == '@':
		goto yystate60
	case c >= '\x01' && c <= '\t' || c >= '\v' && c <= '\x1f' || c >= '!' && c <= '?' || c >= 'A' && c <= 'ÿ':
		goto yystate54
	}

yystate60:
	c = l.next()
	switch {
	default:
		goto yyrule29
	case c >= '\x01' && c <= '\t' || c >= '\v' && c <= '\x1f' || c >= '!' && c <= 'ÿ':
		goto yystate61
	}

yystate61:
	c = l.next()
	switch {
	default:
		goto yyrule28
	case c >= '\x01' && c <= '\t' || c >= '\v' && c <= '\x1f' || c >= '!' && c <= 'ÿ':
		goto yystate61
	}

yystate62:
	c = l.next()
yystart62:
	switch {
	default:
		goto yyabort
	case c == '"':
		goto yystate63
	case c == ',':
		goto yystate66
	case c == '=':
		goto yystate67
	case c == '}':
		goto yystate69
	case c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
		goto yystate68
	}

yystate63:
	c = l.next()
	switch {
	default:
		goto yyabort
	case c == '"':
		goto yystate64
	case c == '\\':
		goto yystate65
	case c >= '\x01' && c <= '\t' || c >= '\v' && c <= '!' || c >= '#' && c <= '[' || c >= ']' && c <= 'ÿ':
		goto yystate63
	}

yystate64:
	c = l.next()
	goto yyrule33

yystate65:
	c = l.next()
	switch {
	default:
		goto yyabort
	case c >= '\x01' && c <= '\t' || c >= '\v' && c <= 'ÿ':
		goto yystate63
	}

yystate66:
	c = l.next()
	goto yyrule37

yystate67:
	c = l.next()
	goto yyrule35

yystate68:
	c = l.next()
	switch {
	default:
		goto yyrule32
	case c >= '0' && c <= '9' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
		goto yystate68
	}

yystate69:
	c = l.next()
	goto yyrule34

yystate70:
	c = l.next()
yystart70:
	switch {
	default:
		goto yyabort
	case c == ' ':
		goto yystate71
	case c == '"':
		goto yystate73
	}

yystate71:
	c = l.next()
	switch {
	default:
		goto yyabort
	case c >= '\x01' && c <= '\t' || c >= '\v' && c <= '\x1f' || c >= '!' && c <= 'ÿ':
		goto yystate72
	}

yystate72:
	c = l.next()
	switch {
	default:
		goto yyrule38
	case c >= '\x01' && c <= '\t' || c >= '\v' && c <= '\x1f' || c >= '!' && c <= 'ÿ':
		goto yystate72
	}

yystate73:
	c = l.next()
	switch {
	default:
		goto yyabort
	case c == '"':
		goto yystate74
	case c == '\\':
		goto yystate75
	case c >= '\x01' && c <= '\t' || c >= '\v' && c <= '!' || c >= '#' && c <= '[' || c >= ']' && c <= 'ÿ':
		goto yystate73
	}

yystate74:
	c = l.next()
	goto yyrule36

yystate75:
	c = l.next()
	switch {
	default:
		goto yyabort
	case c >= '\x01' && c <= '\t' || c >= '\v' && c <= 'ÿ':
		goto yystate73
	}

yystate76:
	c = l.next()
yystart76:
	switch {
	default:
		goto yyabort
	case c == ' ':
		goto yystate78
	case c == '\n':
		goto yystate77
	}

yystate77:
	c = l.next()
	goto yyrule40

yystate78:
	c = l.next()
	switch {
	default:
		goto yyabort
	case c >= '\x01' && c <= '\t' || c >= '\v' && c <= '\x1f' || c >= '!' && c <= 'ÿ':
		goto yystate79
	}

yystate79:
	c = l.next()
	switch {
	default:
		goto yyrule39
	case c >= '\x01' && c <= '\t' || c >= '\v' && c <= '\x1f' || c >= '!' && c <= 'ÿ':
		goto yystate79
	}

yystate80:
	c = l.next()
yystart80:
	switch {
	default:
		goto yyabort
	case c == ',':
		goto yystate83
	case c == ':':
		goto yystate84
	case c == '[':
		goto yystate86
	case c == '\t' || c == ' ':
		goto yystate82
	case c == ']':
		goto yystate87
	case c == '}':
		goto yystate88
	case c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
		goto yystate85
	case c >= '\x01' && c <= '\b' || c >= '\v' && c <= '\x1f' || c >= '!' && c <= '+' || c >= '-' && c <= '9' || c >= ';' && c <= '@' || c == '\\' || c == '^' || c == '`' || c == '|' || c >= '~' && c <= 'ÿ':
		goto yystate81
	}

yystate81:
	c = l.next()
	switch {
	default:
		goto yyrule25
	case c >= '\x01' && c <= '\b' || c >= '\v' && c <= '\x1f' || c >= '!' && c <= '+' || c >= '-' && c <= '9' || c >= ';' && c <= 'Z' || c == '\\' || c >= '^' && c <= 'z' || c == '|' || c >= '~' && c <= 'ÿ':
		goto yystate81
	}

yystate82:
	c = l.next()
	switch {
	default:
		goto yyrule24
	case c == '\t' || c == ' ':
		goto yystate82
	}

yystate83:
	c = l.next()
	goto yyrule23

yystate84:
	c = l.next()
	goto yyrule20

yystate85:
	c = l.next()
	switch {
	default:
		goto yyrule19
	case c >= '0' && c <= '9' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
		goto yystate85
	case c >= '\x01' && c <= '\b' || c >= '\v' && c <= '\x1f' || c >= '!' && c <= '+' || c >= '-' && c <= '/' || c >= ';' && c <= '@' || c == '\\' || c == '^' || c == '`' || c == '|' || c >= '~' && c <= 'ÿ':
		goto yystate81
	}

yystate86:
	c = l.next()
	goto yyrule21

yystate87:
	c = l.next()
	goto yyrule22

yystate88:
	c = l.next()
	goto yyrule26

yyrule1: // #{S}
	{
		l.state = sComment
		goto yystate0
	}
yyrule2: // HELP{S}
	{
		l.state = sMeta1
		return tHelp
		goto yystate0
	}
yyrule3: // TYPE{S}
	{
		l.state = sMeta1
		return tType
		goto yystate0
	}
yyrule4: // UNIT{S}
	{
		l.state = sMeta1
		return tUnit
		goto yystate0
	}
yyrule5: // "EOF"\n?
	{
		l.state = sInit
		return tEOFWord
		goto yystate0
	}
yyrule6: // \"(\\.|[^\\"])*\"
	{
		l.state = sMeta2
		return tMName
		goto yystate0
	}
yyrule7: // {M}({M}|{D})*
	{
		l.state = sMeta2
		return tMName
		goto yystate0
	}
yyrule8: // {S}{C}*\n
	{
		l.state = sInit
		return tText
		goto yystate0
	}
yyrule9: // {M}({M}|{D})*
	{
		l.state = sValue
		return tMName
		goto yystate0
	}
yyrule10: // \{
	{
		l.state = sLabels
		return tBraceOpen
		goto yystate0
	}
yyrule11: // \{
	{
		l.state = sLabels
		return tBraceOpen
		goto yystate0
	}
yyrule12: // {L}({L}|{D})*
	{
		return tLName
	}
yyrule13: // \"(\\.|[^\\"])*\"
	{
		l.state = sLabels
		return tQString
		goto yystate0
	}
yyrule14: // \}
	{
		l.state = sValue
		return tBraceClose
		goto yystate0
	}
yyrule15: // =
	{
		l.state = sLValue
		return tEqual
		goto yystate0
	}
yyrule16: // ,
	{
		return tComma
	}
yyrule17: // \"(\\.|[^\\"\n])*\"
	{
		l.state = sLabels
		return tLValue
		goto yystate0
	}
yyrule18: // {S}\{
	{
		l.state = sComplexValue
		return tBraceOpen
		goto yystate0
	}
yyrule19: // {L}({L}|{D})*
	{
		return tLName
	}
yyrule20: // :
	{
		return tColon
	}
yyrule21: // \[
	{
		return tBracketOpen
	}
yyrule22: // \]
	{
		return tBracketClose
	}
yyrule23: // ,
	{
		return tComma
	}
yyrule24: // [ \t]+
	{
		// Skip whitespace inside the block
		goto yystate0
	}
yyrule25: // [^ \n\t,\[\]{}:]+
	{
		return tValue
	}
yyrule26: // \}
	{
		l.state = sTimestamp
		return tBraceClose
		goto yystate0
	}
yyrule27: // {S}[^{ \n]+
	{
		l.state = sTimestamp
		return tValue
		goto yystate0
	}
yyrule28: // {S}st@[^ \n]+
	{
		return tStartTimestamp
	}
yyrule29: // {S}[^ \n]+
	{
		return tTimestamp
	}
yyrule30: // \n
	{
		l.state = sInit
		return tLinebreak
		goto yystate0
	}
yyrule31: // {S}#{S}\{
	{
		l.state = sExemplar
		return tComment
		goto yystate0
	}
yyrule32: // {L}({L}|{D})*
	{
		return tLName
	}
yyrule33: // \"(\\.|[^\\"\n])*\"
	{
		l.state = sExemplar
		return tQString
		goto yystate0
	}
yyrule34: // \}
	{
		l.state = sEValue
		return tBraceClose
		goto yystate0
	}
yyrule35: // =
	{
		l.state = sEValue
		return tEqual
		goto yystate0
	}
yyrule36: // \"(\\.|[^\\"\n])*\"
	{
		l.state = sExemplar
		return tLValue
		goto yystate0
	}
yyrule37: // ,
	{
		return tComma
	}
yyrule38: // {S}[^ \n]+
	{
		l.state = sETimestamp
		return tValue
		goto yystate0
	}
yyrule39: // {S}[^ \n]+
	{
		return tTimestamp
	}
yyrule40: // \n
	if true { // avoid go vet determining the below panic will not be reached
		l.state = sInit
		return tLinebreak
		goto yystate0
	}
	panic("unreachable")

yyabort: // no lexem recognized
	// silence unused label errors for build and satisfy go vet reachability analysis
	{
		if false {
			goto yyabort
		}
		if false {
			goto yystate0
		}
		if false {
			goto yystate1
		}
		if false {
			goto yystate6
		}
		if false {
			goto yystate26
		}
		if false {
			goto yystate31
		}
		if false {
			goto yystate34
		}
		if false {
			goto yystate42
		}
		if false {
			goto yystate46
		}
		if false {
			goto yystate51
		}
		if false {
			goto yystate62
		}
		if false {
			goto yystate70
		}
		if false {
			goto yystate76
		}
		if false {
			goto yystate80
		}
	}

	return tInvalid
}